Water-heater



A. W. EMPSON.

WATER HEATER.

APPLICATION FILED sEPTjI?. |920.

Patented Feb. 1, 1921.

a Amm 'F 'EUR KTTRNY UNITED ALFRED WALKER EMPSON, 0E' LQNDON, ENGLAND.

WATER-HETER- Specification of Letters Patent.

Patented Fein 1, Y1921.

Application filed September 17, 1929. Serial No. 411,019.

T 0 all whom it 'may oouceru:

Be it known that l7 Atri-:un famine EiuPsoN, a subject or the line,` ot Great Britain and lreland, and residing at 17 Boscoinbe road, Londoin W. l2, lilngland, have invented certain neur and useful linprovernents in llilaterlieaters ot which the following is a specification.

This invention relates to heaters or boilers oit the kind adapted for raising the teur perature oit Water or other liquids, in contradistinction to pressure steam generators.

The object oit the invention is to provide an improved heater or boiler which can be built quickly and cheaply and in Awhich liquid can be heated with greater rapidity and more economically than in Water heaters as previously proposed.

According to the present invention the heater or boiler comprises in combination a casing` inclosing; a Water tubular boiler, a vertically adjustable traine supporting lire bars arranged beneath the boiler and a pivoted tliap i'ibrniingI the rear Wall ot the grate and adapted to be singularly adjusted in conjunction with the vertical adjustments oi the lire bars ttor the purpose ot varying' siinultaneonsly the vertical and longitudinal dimensions olf the grate.

ln the accompanying drawings7 which illustrate a ivater heater constructed in accordance with the present invention lfigure l is a side elevation partially in section, and

Fig. 2 au eud view, the right-hand hallr beine" a section taken on the line 2-2 of Fig. l. l

ln the illustrated embodiment of the iuvention the liquid is heated in a tubular nonpressure heater or boiler comprising a bank oil inclined -water tubes e Which are expanded or otherwise secured at their enos into headers or boxes I) and c ot rectangular or other torni. The headers 7J and c coinrnunicate with a receiver tank Z by means ot pipes or conduits c and respectively, whereby the Water, when heated, circulates by thermo-siphonic action in a closed circuit, the path of which is indicated generally by the arrows in Fig. l. The upper header e is provided with detachable cover g so that it is possible to cleanse this header and the Water tubes When desired. The lower header c is provided with a mudhole 7L and a drain pipe z', the latter being` provided with a suitable plug or cock. The

receiver tank d has an inlet pipe y by means oi which the tank can be refilled or kept charger with liquid, usually Water. An olftake pipo ,7e saving a suitable controlling valve is also provided on the tank d, preterably being); located, as illustrated, toward that end at which the heated water passes up int-o the tank, and spaced a shortdistance above the bottoni oli' the tank so that it is impossible to draiv od the Whole of the Water in the event of a failure ot the supply.

The parts hereinbetore described are inclosed in a suitable casing or chamber Z illustrated as beingl rectangular in shape. The chamber Z is lined with refractory niaterial my. The tank [Z is secured in position at the top ot the casing; Z by suitable means such as vliron supports a carried by bracl ets or other means on the lateral Walls oit the easing', The upper header Z; rests on a T- iron support o embedded in a shoulder p ot the refractory lininp; and a block q is provided on the bottoni ivall ot the casing` to support the loiver header c. Battle plates fr and S are arranged at intervals along the tubes to cause the hot gases troni the Yluruace to take a circuitous path around and over the tubes, so as to utilize as much as possible of their heat before they escape by way et the ilue or chimney stack t.

The lire bars a are mounted on a rectangular trarne e* and, according` to the present invention, provision inade tor raising or loivering` there9 for the purpose ot varying the capacity ot the furnace chamber, are cording to the nature ot the fuel which is to be burnt in the ,Si larger grate area and deeper lire is necessary insure the economical combustion orn l'iulliy fuel, such as wood, than is the case for bulky fuel, as coal or coke The bars may be raised or low-ned by a convenient mechanism, the example shown comprising' tivo pairs 'torlred links fao pivoted one to each side lnnb ot the trarne u The lower ends of the links on. either side are pivotally connected to nuts c Workingv on a screwthreaded spindle 'y mounted in bearings in the side Wall of the casing. @ne link Works on right-handed thread and the other on a lett-handed thread 4l, so that rotation ot the spindle y causes the nuts :e to move toward or avv-ay troni each other and, through the medium ot the links fw, these movements will cause the trarne c and bars carried thereby to be elevated or depressed.

Bevel Wheels 5 are provided on the spindles jz/ which are rotated simultaneouslj7 by ineane oi" bevel Wheels G mounted on a transverse spindle T. his spindle is mounted in suitable bearings in the easing` and is provided exteriorly oi? the latter at each extreniitj7 with an operating` handle or oran i 53.

Provision is also inade whereby the length et the fuel space can be varied. This is effected bjr means of a Wall or Hap 9 pijn oted on a horizontal, transverse rod 1G, and faced with refractory material ll on the sides exj esed to the burning inel. The rod l) passes through bearings in the side Walle et the easing and is provided at its ends with operatingl handles l2 `lfor etlleetinp; the angular adjustment ot the flap. Since the handles and l2 are provided en both sides ot the easing and in close proximity to eaeh other the adjustment of the bars and that of the 'flap can be eii'eeted by one person Simultaneously at either side et' the easing. ln this connection it is be understood that any suitable mechanism may be einpj tor edeeting the adjnstrnents ot the bers and iap. A

Fig. l snows the grate bi1 rning coal or coke, the highest nosition and the il L in their p in its toreniost thY positioniand ther-etere muni grate Capacity. 1 to have the nianinnnn spa bars are manipulated down o i and the flap to its rearinost position. The rear position ot the 'Flap is indiezrted in dotted lines, and in this position 'the rounded `it'ree end of the ilap bears against allorin mental bloei; 'i3 ot refractory material. n the rear position also the 'flap lies adjacent and parallel to a wall lll extending between the baille plate 7 and the bottoni Wall ot' the easing, and in eiieet forming an extension et the baffle T.

nee/,50e

immediately above the receiver tank Z is a platform or chamber l5 which may have a hinged or other lid or lids 16. Cans olf lubricating oil or other vessels or material to be heated are placed Within the chamber l5 and are Warnied by the heat radiating from the upper Wall of the tank (Z. An ontlet aperture or pipe 17 may be provided at the top of the tank d to allow any steam which may be generated inthe boiler to pass from the tank al into the chamber l5 to assist in further heating the vessels een tained therein. A drain outlet or pipe i8 leading from the bottom of the chamber l5 allows for the escape et Water 'toi-ined by the condensation of steam, together with any leakage of oil from the cans.

rlhe Whole is supported on a suitable base which maj7 be supported by land or road Wheels 19, or on a Inet-or chassis, render the heater easily transportable.

Either natural or meehanieally forced dratt rnajf' be employed as is the more ronvenient.

Having non7 described my invention, what l Claim as new and desire to secure bj' Letters Fatent is:-

A Water heater comprising; a easing. a boiler inounted in said easing a vertically adjustable grate mounted in said easing` below said boiler, a 'flap haring ne upper end piif'otalljf' mounted above the grate and. its lower end engaging said gr: y 'e normally lool ing the iiap aganist ino' in one direc i n, and ineane or movi; tin p-ivoted tlaj') after the grate has been adjnsted.

ln testimoni; whereof l have signed ,my name to this specification.

ALFR ED VALKLR ls/IPSUN.

1Witnesses lVrLLrAM finnen, Janine Citas. MCRAn. 

